Oven-front structure and attaching means



Sept. 16, 1930. F. A. GERCICH 1,775,936

OVEN F'RONT STRUCTURE AND ATTACHING MEANS Filed p 1926 2 Sheets-Sheet 1 I N V EN TOR. fizzy/m Ii 6276/09 ATTORNEY Sept. 16, 1930. F. A. GERCICH OVEN FRONT STRUCTURE AND ATTACHING MEANS Filed Sept. 4, 1926 2 Sheets-Sheet 2 R 6 w 3 7 m a H Ill. F/ W. U H"... II @[A w m V A B w '21 m f 5% f \llalvf 5 w 2W #0 7 M a J, y f V \IIIIIIII/ j (p 4 E T u 3 4 1 1 3 2 7 21 2 6 25 the foregoing, will Patented Sept. 16, 1930 UNITED STATES PATENT. OFFICE FREDERICK A. GERGICH, OF OAKLAND, CALIFORNIA, ASSIGNOR TO HAMMER-BRAY COMPANY, OF OAKLAND, CALIFORNIA, A CORPORATION OF CALIFORNIA.

OVEN -FRON'1 STRUCTURE AND ATTACHING MEANS Application filed September 4, 1926. Serial No. 133,706.

My invention relates to an oven-front structure providing a door mounting and having incorporated therewith means for attaching it inoperative relation to an oven.

An object of the invention is to provide a structure of the class described so arranged that the means for securing the same to the stove will be concealed.

Another object of the invention is to provide a structure of the class described so constituted that the casing portion thereof may be stamped out of sheet material.

A further object of the invention is to provide a structure of the class described in which no frictional engagement of the door with the casing portion is permitted, thereby preventing marring of the casing finish.

A still further object of the invention is to provide a structure of the class described Whichis extremely simple and is arranged to be assembled and installed with a minimum of effort.

The invention possesses other objects and features of advantage, some of which, with be set forth .in the following description of the preferred form of my invention which is illustrated in the drawings accompanying and forming part of the specification. It is .to be understood, however, that I do not limit myself to the showing made by the said drawings and description,-as I may adopt variations of the pre ferred form within the scope of my "invention as set forth in the claims.

Referring to said drawings,

Figure 1 is a rear sectional view taken through ment of vention.

Figure 2 is a sectional view taken on the line 2-2 in Figure 1.

Figure 3 is a, fragmentary plan view taken on the line 33 in F igure' 1.

Figure 4 is a front view ofthe installation, 45 'portions, of the doors being broken away.

igure 5 is a sectional view. taken on the Figure 1, but withone of the the oven-front structure of my inline 55 in doors in opened position.

Figure 6 is a perspective view of a fastening member forming part of the structure of an oven equipped with one embodiing member 11, mounting members 12 and -13 providing door bearings and forming part of the attaching means for the front, and attaching members 14 at the top of the upper oven. The frame member 11 is provided with major apertures 16 and 17 forming openings to the ovens 8 and 9 respectively and preferably provided at their edges with inwardly countersunk seats 18 and 19 in which doors 21 and 22 respectively are arranged to be disposed.

As here shown, the doors are provided with ears 23 extending laterally therefrom at their lower edges, while rearwardly offset hinge trunnions 24 of suitable structure are provided on said ears. The seats 18 and 19 of the frame are preferably extended in their plane to provide seat portions 26 back of the door ears, which seat portions are provided with perforations 27 permitting the free movement of the trunnions 24: therethrough,v it being noted that the perforations 27 preferably extend somewhat below the lower line of the seat.

The frame member 11 is preferably of unitary structure and is arranged to be provided by stamping it out of sheet metal to produce a structure which will be light and strong and which will take a glazed enamel finish. When, as here shown, the member 11 is a stamped product, the various part" thereof will be formed of channel section, the frame, when viewed from the back, presenting side channels 31, atop channel 32, a cross channel 33 between the door openings, and a bottom channel 34, the various channels connecting at their ends and being disposed in coplanar relation, such channel structure being essential to the production of a rigid frame of minimum weight.

Bearings for the trunnions 24 are provided at the various perforations 27 and as previously indicated, such bearings are provided on the members 12'and 13 which are formed separately of the frame and arranged to be fixed thereto adjacent the perforations 27. The members 13 for the lower door 22 are generally L-shaped and are disposed in the ends of channels 31 and 34 at their intersections, a portion thereof being cut away opposite the perforations 27 and a bearing lip 37 being provided thereon to protrude forwardly thereof to overlie the lower edge of the perforation 27. In this manner, bearings for the trunnions to effect support of the door 22 are provided independently of the casing or frame, so that no frictional engagement of the door or trunnions with the casing is permitted, thus preventing any marring of the casing finish on account of the operation of the door.

Counterbalancing means for the door are provided, such means being here shown ope-ratively associated with the member 13 and the trunnion. Pivotally engaged with the trunnion at a point thereon beyond its bearing point is a strut member 38 extending generally upwardly from the trunnion and having a tension spring 39 operatively secured between itsupper end and a point on the member 13: In this manner, not only is the door resiliently urged to maintain its closed position, but the trunnion is resiliently held seated on the lip 37.

The trunnions 24 and the members 12 for the upper doorare of similar structure to those of the lower door, but the members 12, instead of being separate units, are preferably provided at the extremities of a single member 43, which is arranged to be disposed in the cross channel 33, the members 12 and 43 being coplanar when viewed from the top, and defining an elongated view when viewed from the front. The member 43 not only holds the members 12 in fixed spaced relation but also provides an end mounting for an oven burner 44, by means of a bracket 46 mounted thereon. In this manner, lateral strains on the casing portion 33 between the oven openings is avoided, and a structure of the strength required is provided for supporting the burner.

Means are provided for securing the bearing members to the casing and the casing to the oven walls at the front edges thereof. As here shown, the oven assembly is provided with continuous outer side walls 48 and removable inner side walls 49, it being noted that the trunnions operate in the space defined between the walls and that the forward wall edgesare arranged to be disposed against and inwardly of the opposed sides of the flange portions 50 of the casing which extendinwardly of the plane of the seat edges. The outer side walls 48 are provided with inwardly turned tabs 51 and 52 respectively arranged to be disposed between that such bolts may also be utilized, as here shown, to secure the ends of the springs 39 to the members 12 and 13.

Since bearing members are lacking at the top of the upper oven, a special means is there provided for securing the casing to the outer side walls 48. As here shown, such means comprises the use of the members 14 arranged to be disposed in the channels 31 and 32 at their intersections and provided with outwardly extending flanges 56 to which the walls 48 are arranged to be secured by means of bolts 57 or other suitable fastening means. A portion 58 of each member 14' is arranged to underlie the adjacent seat corner 59, and such portion and seat corner are perforated for the reception of a bolt 61 for clamping them together, the bolthead 62 of the bolt 61 being thus normally concealed by the door 21.

Portions of the member 43 are arranged to underlie the upper seat corners 63 of the lower door seat, which corners and portions are perforated to allow their fastening together as by means of a screw 64 here shown utilized for the purpose. In this manner the member 43 is additionally fixed to the frame, with the screw head 65 of the screw 64 normally concealed behind the door 22.

The bottom edge 66 of the frame is here shown disposed downwardly substantially in the plane of the door seats and is arranged to be disposed inwardly of the stove frame member 67 when the oven assembly is seated thereon. The members 13 overlie the rear surface of the edge 66 and are arranged to be secured to such edge by means ofscrews 68. In this manner, the members 13 are also arranged to be held fixed to the casing at a second point k A front support for the bottom plates 71 and 72 of the ovens 8 and 9 is also provided in association with the members 12 and 13 respectively. As here shown, such support for the upper plate 71 is provided by means of nibs 73 projecting inwardly from the member 43 of which the members 12 are a part, while the lower plate 72 is arranged to be disposed on similar nibs 74 provided on the members 13.

masses The inner side walls 49 are formed in removable sections and are provided at their front edges with outwardly extending portions 76 which are arranged to seat on the upper end portions 77 of the members 12 and 13, such portions preferably being flanged inwardly of the oven front to provide for the seating of the lower edges 78 of the wall portions 7 6 thereon and extending in a direction inwardly of the outside side walls to provide stops for the outward positioning of the inner walls when the latter are operatively disposed in the ovens. Stops 79 are also provided on the members 14 to limit the outward positioning of the inner Walls at the top of the oven 8.

It will now be noted that a stove front structure has been provided which, while it has fastening members at the front thereof, provides for the concealment of such memhere in the door seats of the stove. And it will be further noted that the casing structure herein shown and described is particularly adapted to be manufactured by stampin the same out of sheet metal.

. claim:

1. In an oven, side walls, a casing providing a door seat, a door enga eable in said seat, a member arranged to he removably fixed to said casing and providing a pivotal mounting for said door, and fastening means extending through said casing solely in the seat portion thereof and cooperating to detachably hold said walls, casing and member in mutually fixed relation.

2. In. an oven, a front casing hollow from the rear and providing a door seat at the front thereof, a door provided with rearwardly oifset supporting trunnions, members positioned in the hollow of said casing and providing bearings for said trunnions, side walls providing a mounting for said casing, means releasably securing said members to said side walls, and means releasably securing said members to said casing, said last means engaging said casing solely in the area of said seat whereby it may be entirely concealed by said door when the latteris disposed in said seat.

3. In an oven structure providing a-pair of adjacent ovens, a front casing for said structure provided with separate door openings for each of said ovens, said openings defining a casing portion between them, doors arranged to be seated in said openings, a gas-burner disposed in one of said ovens,

' and a member disposed behind said casing portion arranged to provide a mounting for said burner and a pivotal mounting for one of said doors.

.4. In an oven structure providing a pair of superimposed ovens, a front casing pro-.

viding separate door openings for each of said ovens, said openings defining a common casing portion between them and providing door seats, doors arranged to be seated in said openings, a gas-burner disposed in one of said ovens, and a member disposed behind said casing portion and secured to said casing solely by means provided in the door seats arranged to provide a support for said burner and a pivotal mounting for the upper of said doors.

5. In an oven structure, a side wall, a front casing providing a door seat, a door arranged to be disposed in said seat, means providing a pivotal mounting for said door and disposed behind a portion of said seat, means directly securing said door seat portion to said first means and to said side walls, and a member operatively disposed behind a seat portion different from said first seat portion and arranged to be directly secured thereto and to said side wall.

6. In an oven structure, a front casing providing a door opening and a door seat about said opening, ,a door arranged to be disposed in said seat, a gas-burner operatively disposed below said oven, and a memberdisposed behind the lower transverse casing portion and supported solely by means provided in the door seats providing a support for said burner and a pivotal mounting for the upper of said doors.

7. In an oven, side walls, a front casing providing a door seat, a door engageable in said seat, a member arranged to be removably fixed to said casing and providing a pivotal mounting for said door, and means extending through the front portion only of said casing and operative to detachably hold said walls, casing and member in mutually fixed relation.

In testimony whereof, I have hereunto set my hand at Oakland, California, this 12th day of August, 1926.

FREDERICK A. GERCICH. 

